temp sensor & poorly running 90q

[DePenning, Charles [EPM/MTN]]

Ok, so this brings up a question- which sensor is it?  IIRC, there are two
in relatively close proximity to each other on the top water neck connection
to the head- one on top which has two wires connected to it and looks pretty
simple (and makes the dash temp gauge go to zero when I unplug it) and the
Multi-Function Sensor on the bottom of the water neck, which has I think
three connections.  I seem to remember a bit of confusion about these two
sensors and their respective functions in the past- something like on the
4kq's they work one way, and on the 90q work another.  I believe Huw had
some insight on this.  
Bernard, which sensor connection did you pull off and use the resistors on?

Thanks for the input, guys.   


Charley 
-----Original Message-----
From: William Magliocco [mailto:magliocc at rocketmail.com] 
Sent: Tuesday, March 30, 2004 12:37 PM
To: Charles.DePenning at EmersonProcess.com
Cc: bernardl at acumenassociates.com; quattro at audifans.com
Subject: temp sensor

Sounds really familiar-I had an '88 VW fox that would start fine COLD then
puke on its own gas when it warmed up.  !@#$^&*( stalled out on me on an
interstate about 10 miles from home.

Temp sensor was open or had insanely high resistance. 
Bernard's idea is very creative w(ith the series resistors), but I simply
went to the "furrin kar parts" place and bought a new one.

We electrical types call that an "NTC"
thermistor-negative temperature
coefficient...resistance goes DOWN as temperature of the device INCREASES.

HTH
Bill in Atlanta

__________________________________
Do you Yahoo!?
Yahoo! Finance Tax Center - File online. File on time.
http://taxes.yahoo.com/filing.html